Alternatives to CMC for AI movement that still leverage navmesh

Hello great game dev minds,

I’m working on a game that involves enemies spawning on the perimeter of the map and navigating to target buildings the player is defending. Enemies are simple hovercraft vehicles, no moving pieces, no animation/physics.

I’m currently using character movement component, but it’s clearly the performance bottleneck when 40+ are onscreen. I know there’s lots I can explore to optimize, but given that my needs are simple and won’t utilize any of the bells and whistles of CMC, are there any lightweight alternatives that still allow for AI movement using the navmesh? I’ve seen conflicting information regarding floating movement component, and failed to get it working with some experimentation.

Thank you for any thoughts!